Patents by Inventor Per Lilja
Per Lilja has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11959361Abstract: The invention relates to a pneumatically operated drill hammer, comprising a piston and a distributor axially arranged relative to each other in a housing, the piston being arranged to be moved axially between a first position and a second position. The drill hammer further includes a pneumatic drive system, including a drive chamber, a return chamber and a plurality of channels for distribution of drive gas in said drive system. The return chamber is arranged at a lower side of the piston and the drive chamber is arranged at an upper side of the piston, wherein the drive chamber is defined by a variable space enclosed by at least the housing, the piston and the distributor. The drive chamber includes at least one inlet port and at least one exhaust port arranged at a circumference of the drive chamber.Type: GrantFiled: October 23, 2020Date of Patent: April 16, 2024Assignee: EPIROC DRILLING TOOLS AKTIEBOLAGInventors: Per-Anders Karlsson, Thomas Lilja, Ernst Arne Johan Bram, Magnus Gustavsson
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Publication number: 20240063780Abstract: The present invention describes a high voltage pulse generator unit comprising a primary side, a transformer and a secondary side, wherein the primary side comprises a winding and wherein the secondary side comprises multiple windings and multiple pulse module units (PMUs), and wherein each PMU comprises the winding and a switching element.Type: ApplicationFiled: December 14, 2021Publication date: February 22, 2024Applicant: OPTICEPT TECHNOLOGIES ABInventors: Per Lilja, Hanshenric Carenborn
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Publication number: 20230371502Abstract: The present invention describes a method for treating a biological material, said method comprising exposing the biological material to vacuum impregnation or pressure impregnation, preferably vacuum impregnation, in an aqueous impregnation solution comprising at least one surfactant.Type: ApplicationFiled: October 22, 2021Publication date: November 23, 2023Inventors: Eda DEMIR WESTMAN, Katarzyna Maria DYMEK-KRAKOWIAK, Bengt EKELUND, Per LILJA, Nils RHODIN, Stephen KWAO, Ahmad HUSAIN
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Publication number: 20230366812Abstract: An IR imaging device includes an optical element receiving infrared radiation from a scene, a filter blocking IR radiation outside of a particular range of wavelengths, an array of sensor pixels to capture an image of the scene based on infrared radiation received through the optical element and filter, the array of sensor pixels comprising a first array of sensor pixels to image gas in within a first spectral bandwidth, and a second array of sensor pixel to sense IR radiation in a second spectral bandwidth where gas is not detected, a read-out integrated circuit (ROIC) and logic circuitry to generate a first image sensed by the first array and a second image sensed by the second array, and gas detection logic to detect the presence of gas in the first image.Type: ApplicationFiled: April 24, 2023Publication date: November 16, 2023Inventors: Hakan E. Nygren, Jonas Sandsten, Per Lilja, Marta Barenthin-Syberg, Henning Hagman, Eric A. Kurth, Brian B. Simolon, Naseem Y. Aziz, Ulf Wallgren
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Patent number: 11635370Abstract: An IR imaging device includes an optical element receiving infrared radiation from a scene, a filter blocking IR radiation outside of a particular range of wavelengths, an array of sensor pixels to capture an image of the scene based on infrared radiation received through the optical element and filter, the array of sensor pixels comprising a first array of sensor pixels to image gas in within a first spectral bandwidth, and a second array of sensor pixel to sense IR radiation in a second spectral bandwidth where gas is not detected, a read-out integrated circuit (ROIC) and logic circuitry to generate a first image sensed by the first array and a second image sensed by the second array, and gas detection logic to detect the presence of gas in the first image.Type: GrantFiled: September 27, 2019Date of Patent: April 25, 2023Assignee: FLIR Systems ABInventors: Hakan E. Nygren, Jonas Sandsten, Per Lilja, Marta Barenthin-Syberg, Henning Hagman, Eric A. Kurth, Brian B. Simolon, Naseem Y. Aziz, Ulf Wallgren
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Publication number: 20220400711Abstract: The present invention describes a PEF system (I) comprising a (channel 2) for PEF treatment of a material, opposite electrode units (3), (4) and at least one conveyor belt (5), wherein said at least one conveyor belt (5) is arranged in the channel (2), in between the opposite electrode units (3), (4) and in close proximity to one of these electrode units (3), (4), wherein said at least one conveyor belt (5) is perforated and/or comprises one or more PEF permeable sections, preferably is perforated, more preferably is a net.Type: ApplicationFiled: November 27, 2020Publication date: December 22, 2022Applicant: OPTICEPT TECHNOLOGIES ABInventors: Per LILJA, Nils RHODIN
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Publication number: 20220361533Abstract: The present invention describes a PEF (pulsed electric field) chamber 1 intended for treating a flow with electric field pulses, said PEF chamber comprising a PEF treatment tube 2 and opposite electrode units 3, 4, wherein said opposite electrode units 3, 4 each has one flow receiving end 5a, 5b and one flow exit end 6a, 6b, wherein the PEF treatment tube 2 comprises exit flow portions 7a, 7b arranged subsequent to the flow exit ends 6a, 6b of the electrode units 3, 4 in the intended flow direction, and thus functioning as an extension of the opposite electrode units 3, 4 in the intended flow direction, wherein the exit flow portions 7a, 7b of the PEF treatment tube 2 are arranged to provide a geometrical narrowing 20 subsequent to the flow exit ends 6a, 6b.Type: ApplicationFiled: September 11, 2020Publication date: November 17, 2022Inventor: Per LILJA
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Patent number: 11200697Abstract: An ambient temperature calibration process includes, in accordance with an embodiment, determining an ambient temperature calibration value for a global external resistance associated with a read out integrated circuit (ROIC) of an image capture component comprising a sensor array comprising a focal plane array of microbolometers arranged on the ROIC; determining an ambient temperature calibration value for a sensor integration time associated with the ROIC; and determining an ambient temperature calibration mapping for an offset mapping associated with the ROIC.Type: GrantFiled: December 11, 2019Date of Patent: December 14, 2021Assignee: FLIR Systems ABInventors: Jonas Sandsten, Per Lilja, Henning Hagman, Marta Barenthin-Syberg, Tien Nguyen
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Patent number: 10694770Abstract: The present invention describes a PEF (pulsed electric field) chamber, said PEF chamber 1 comprising a tube 2 with two open ends 3, 4 having attachment means 5, 6 enabling the PEF chamber 1 to be a plug-in device, wherein the tube 2 has a length L from one open end 3 to the other open end 4 and an inner width IW from one side of the tube to the other side of the tube in a cross section being perpendicular to the length L thereof, wherein the tube 2 has a geometrical narrowing of the inner width IW somewhere along the length L of the tube 2, and wherein the PEF chamber 1 comprises a grid 9 of an insulating material being arranged at the geometrical narrowing or electrode units 7, 8 being arranged opposite each other at the geometrical narrowing of the inner width IW along the length L of the tube 2. The plug-in feature of the present invention renders the PEF chamber to function as an l attachable and disposable PEF chamber.Type: GrantFiled: April 20, 2016Date of Patent: June 30, 2020Assignee: Arc Aroma Pure ABInventors: Pär H Henriksson, Per Lilja
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Publication number: 20200202569Abstract: An ambient temperature calibration process includes, in accordance with an embodiment, determining an ambient temperature calibration value for a global external resistance associated with a read out integrated circuit (ROIC) of an image capture component comprising a sensor array comprising a focal plane array of microbolometers arranged on the ROIC; determining an ambient temperature calibration value for a sensor integration time associated with the ROIC; and determining an ambient temperature calibration mapping for an offset mapping associated with the ROIC.Type: ApplicationFiled: December 11, 2019Publication date: June 25, 2020Inventors: Jonas Sandsten, Per Lilja, Henning Hagman, Marta Barenthin-Syberg, Tien Nguyen
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Publication number: 20200025679Abstract: An IR imaging device includes an optical element receiving infrared radiation from a scene, a filter blocking IR radiation outside of a particular range of wavelengths, an array of sensor pixels to capture an image of the scene based on infrared radiation received through the optical element and filter, the array of sensor pixels comprising a first array of sensor pixels to image gas in within a first spectral bandwidth, and a second array of sensor pixel to sense IR radiation in a second spectral bandwidth where gas is not detected, a read-out integrated circuit (ROIC) and logic circuitry to generate a first image sensed by the first array and a second image sensed by the second array, and gas detection logic to detect the presence of gas in the first image.Type: ApplicationFiled: September 27, 2019Publication date: January 23, 2020Inventors: Hakan E. Nygren, Jonas Sandsten, Per Lilja, Marta Barenthin-Syberg, Henning Hagman, Eric A. Kurth, Brian B. Simolon, Naseem Y. Aziz, Ulf Wallgren
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Publication number: 20190151817Abstract: The present invention describes a PEF (pulsed electric field) chamber comprising a PEF treatment tube 2, a casing 3 and at least two electrode 5 units 4, 5, wherein said at least two electrode units 4, 5 are insertable to be fixated in the casing 3 and into the PEF treatment tube 2.Type: ApplicationFiled: April 19, 2017Publication date: May 23, 2019Inventors: Pär H HENRIKSSON, Per LILJA
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Publication number: 20180116256Abstract: The present invention describes a PEF (pulsed electric field) chamber, said PEF chamber 1 comprising a tube 2 with two open ends 3, 4 having attachment means 5, 6 enabling the PEF chamber 1 to be a plug-in device, wherein the tube 2 has a length L from one open end 3 to the other open end 4 and an inner width IW from one side of the tube to the other side of the tube in a cross section being perpendicular to the length L thereof, wherein the tube 2 has a geometrical narrowing of the inner width IW somewhere along the length L of the tube 2, and wherein the PEF chamber 1 comprises a grid 9 of an insulating material being arranged at the geometrical narrowing or electrode units 7, 8 being arranged opposite each other at the geometrical narrowing of the inner width IW along the length L of the tube 2. The plug-in feature of the present invention renders the PEF chamber to function as an 1 attachable and disposable PEF chamber.Type: ApplicationFiled: April 20, 2016Publication date: May 3, 2018Inventors: Pär H HENRIKSSON, Per LILJA
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Patent number: 4561319Abstract: The invention is directed to an arrangement for journalling large eccentric forces which are generated by a rotating eccentric assembly. One problem associated with the bearing arrangements of these forces is that the size of the bearing is extremely large which, in turn, results in shaft speed limits that are readily exceeded. By dividing the eccentric assembly into two or more tubular eccentric weights arranged coaxially in relation to each other and journalling these in separate bearings on shaft journals connected to the structure to which vibratory motion is to be imparted, a distribution of the eccentric forces is obtained together with a reduction of the bearing dimensions. The eccentric weights are driven by means of a drive rod arranged on a drive shaft interacting with the eccentric weights. The journalling arrangement and eccentric assembly can be part of a vibration arrangement for imparting vibratory motion to the roller structure of a compactor for compacting soil, asphalt or the like.Type: GrantFiled: January 25, 1984Date of Patent: December 31, 1985Assignee: Dynapac ABInventor: Per Lilja